Reply to Traktor Shift - Hold question

Hey guys,

I'm kinda familiiar with the mappings in traktor, but when I try to make a modifier that only works when I press it, it doesn't seem to work.

My shift button always stays on, untill I press it again, but I don't want that.
The Shift should only work if I press it, than has to go back to an off state.

Can someone help me with this probably very easy question?

Thanks!